Trumpism is a cult. Plain and simple. This is cult behavior.
I realize that's very dismissive, but in this case I think that's a good thing. You could spend years debunking their every claim, anti-fact, and bad faith argument--and there's a time and a place for those discussions--but there's no need to burden your mind with the mountain of their nonsense. You don't have to read the whole Time Cube page to determine that its author isn't worth listening to for astrophysical insights.